Calculate the Greatest Common Factor or GCF of 2781
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The instructions to find the GCF of 2781 are the next:
1. Decompose all numbers into prime factors
2781 | 3 |
927 | 3 |
309 | 3 |
103 | 103 |
1 |
2. Write all numbers as the product of its prime factors
Prime factors of 2781 | = | 33 . 103 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 3 , 103
Common prime factors with the lowest exponent: 33, 1031
4. Calculate the Greatest Common Factor or GCF
Remember, to find the GCF of several numbers you must multiply the common prime factors with the lowest exponent.
GCF = 33. 1031 = 2781
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